Drier



Sept. 18, 1928.

E. A. HuL'rs DRIER Filed Jan. 27, 1925 2 Sheets-Sheet NN N,

sept 1s, 192s.

E. A. HuL-rs DRIER Filed Jan. 27, 1925 2 Sheets-Sheet 2 w ww@ gnoento/omn. nu nu nu 1H. nu nn. nu

61H01 ma@ y Patented Sept. 18, 1928.

, PATENT OFFICE.

EUGENE A. HULTSOF SALTVILLE, VIRGINIA.

DRIER.-

Application filed anuary This invention relates to ldriers in generalalthough it is particularly adapted vtor drying clay products such asbrick, tile, etc., the principal object of the invent-ion beingv toreduce the labor of handling the products while, at thesame time,providing an appa-` ratus for carrying out a process in the mostkefficient manner without injuring the prod-` ucts as they passthrough-.the drier.

It is a feature of my invention'to lbegin the drying operation with aircontaining` moisture to prevent too rapid drying at first to obviate anyexcess rapidity of extracting the moisture from the products being driedto cause cracking.

' Another feature of my invention is to dry the products in successivesteps'which enables me to regulate the rapidity of extracting themoisture from the products to an extent which experience proves to bethe best to produce the best results.

Another Jfeature of the invention pertains to the provisionsformanipulating the products as they pass through the drier with,- outthe necessity of the attendant entering the drying rooms or spaces. y.

W'ith these and other objects in view which will be developed as the.description proceeds, I will now describe my invention in connectionwith the accompanying drawings of which:

Fig. 1 is a floor plan partly in section looking down on the drier. Y

Fig. 2 is a sectional side elevation of the drier. u y Y Fig. 3 .is atop plan view partly in section of the tlues of the drier.

Fig. 4: is an end View ofthe drier onthel line lf-4: of Fig. 2.

Fig. 5 is a section on the line 5-5 of Fig. 2.

Fig. 6 is a section on the line 6--6 of Fig. 2. p

The drier may consist ot. several separate compartments A, B, C and D. Ishow four compartments although it is apparent that a fewer number or,a` greater' number may be used as. desired.

Fach compartment comprises side Walls 1, and end walls 2.v Forl,convenience I may extend tracks 3-3 through the ,compartf 27, 1925.Serial No. 5,138.

'at the right in Figs. land 2. This will facilitate the ltransfer ofVthe cars 7 loaded with the bricks from' end toend of the drier. Toinsure `a proper circulation of the heated air through vthe drier, Imay' provide fans 9, 10, thetanQ being conveniently placed at the air.entranceend Aof the drier and the other tan 10 for withdrawing the airat the air outlet end of the drier. I conveniently use the waste heatfrom a furnace after it has been used in the production of power or forany other purpose as my drying` medium. ,i Y i .The air is forced by thefan 9 through they flue 11 to the separate. connecting flues 12,

12, 12, through which it is .conducted to openings 14, 111', la intocompartments 16, 16', 16 through which cars 7 pass from lett to rightvin Figs. 1 and 2. Topinsure proper circulation, Imay provide `openings16 in theside walls so.l theuair can pass from one compartment to theother. 'After the heated air comes Ain `contact `with thev 4 products,it passes upwardly asY shown by the arrows at the right of Fig.2 into aflue 17 beneath' the. roof 18 ot the drier, thence through anopeningprovided with a valve 19 shown best in F ig. 2 and d0wnwardly as shownby the arrows in Fig. 2r through the compartment C and its floor` to a.flue 2O beneath the iioor, thence through an opening provided withy avalve 21 to a flue. 22, thence upwardly through the floor of compartmentB 'to flue 23, Athence through an opening having a valve 24 therein Aanddownwardly through the compartment A and flues 25, 25', 25 to the flue30 and out through fany 10.

At the ends o1" each of the compartments A, B, C and D, I p rovidedoorsor gates 27 which may be either hinged or sliding' and between therespective ydoors of compartments A and B, vthere is a spacethroughlwhich the attendant may pass to open the doors A27 and manipulate andrun thecars 7 through the -doors from one compartment' to the other.lAsk the tracks on Vwhich .thev cars runj are slightly inclined it willnot be difficult to move the cars on their tracks through the successivecompartments., practica'the ca'riV ariel `pt'iiii'eacli.cbJ nceiinds isnecessiti l?. pertinent, and in order to economize the heat, I may leavea space between the coinpart` CTI the fother"'com artniets"to' thelastffat the Meinirigsri mi Whn the halted air; reachestheL material irrits greenl state, there-f` fotte, it* isladen 'ifwith moistfure 'and'thus 'pre1 vents 'too rapid ldrying in' i :compartment- A into which thematerial first Renters in its pasH sagethrough the compartments. AlfterJthe material hasl remained in the respectivecon partmentsa*suicientlength ottime,y thedoors 27 are opened long'enough to'trahs'fA fer themaaar but tf Compartment D, and

theL materi'alL irrcorn'partment CV is passed on td compartrle'ntD,V thematerial in comparti- Irr'thtiB-i ispssed onfto compartment C, thematerial in' compartment' A,bei`ngpassed on ducted' 'into thecompartmentfA.' After the Inaterittl "is-1j located fin" j a compartmentthe dliors 27 of `thatl compartment' are closed `and Y theI heated Aair'will be"pa'"ssed through*` the 'V compartments fr'on'ithe bottom ofLonerto 'the tpof thefbther "alternately 4 as 'before set forth.V I havefound that bythus drying the"1raterialwith air having'the proper `amountofinoisture therein at each stage' of the 'pt'ocess, "it preventscracking `of such mai teliallas' clay"products` The describedproc-4essdriefs the'clay products Without cracking them and' in" the mosteconomical and expeditibuslfashioni Y i Havingdescribed my4 apparatus"and the picessbywhichitlis operatdfWha-t I claim" l." Adrier'compri'sixigfa series of compart-l` ments connected by. apluraltyfbues/ ar-` ranged 1tofcondtict heated air *through the bottom'of one compartment, thence upwardl compartment' in the' series,A thence1 down-` Wt'rdlythrough the samev to" the bottom of thljneittcompartmentin the seriesgfand fil" nally to theflast` ,c'ompartmeitconstituting the 'entrance' "compartment of the drier,l the series,` ot'compartments having a "plurality of,` tracks entendihg side by sidethere' throughand a separate'he foreach ot' the plurality' of tracks,the separate ues comniunicating vWith a single lue with `mean`s thereint force air through the `plurality of y fliies and compartments, thecompartments 'being separated onefrom thev other by doors orinin'gpartofthe permanentl structure of to bedried may be passed from onecompartment to the other-,ybutyhich when closed will separate each ofthe compartments one from the other whereby air may be forced through aplurality of ues communicating with each ycom'partment and with a commonentrance flue.

\ 2.1*Af1rier`com'pnsingla 'series Ofcom-partments connected byfluesarranged to condlctf heated air through thei tbottom' l of one 'gcomV 75partneht, thence to thetoplofthe ne1(t`- coIr1- partl'iient inthe*series,` thence Avto theI bottom l! of' the next compartment intheseries audl finally Vtd theffcompartm'ent 'servi'nglfas the ent-rancecolrtpart'n'ientI 'of the material to be 80 i,

dried, said compartments? being i normally i closed except fthr'o'ugh"said flues,l` eac-hI compartaient being separated frornlthevnext in.'-the series' lbyfdoors' at the Aends of each com`` pz'n'tmenti through.'which the materia'l td be l 85 dried'- may 'bef passed 1 from* one"cmnpartl' ment to the other, but whcltavli'enclosedf will separateone41 compartment frein the other,i except thrblrgh ysaid lu'es, there'beirig aspace between the ders'of'adjacent comi! 90 partmentsllin saidserlesfofV com artl'n'ente\7 adapted to accommodate an lattenr ant Whilemanipulating "saifdjA Adoers "arid the imaterial being driecL`- t H A Y3." A V'drier compri'sig a ser-iesof "com art` 95 ments',arilincljiedtraekpasng thrijugthe respective compartiments lot'ythefseres' with cars to transport lthe -matelrial "onf the "tracky afll'e forconductinghated airftotheilst compatnint of theserie`s`,"afsecond flue fdr condticti'ng heated 4'air from; thefirstbomi partment ofj lth seriesl to the fsecond and lues forconducting the heated ai'ltoisucceeding 'compartmentgf theV4 Thies`being; 'au ranged alternatelyrbelw adabove' the refspecti ve 1`compartments," each" compartment having doors for permitting passageof'ith'e cars from one compartmedt to: another, whereby air isconductdffronr thetofpoff one' compartment t the top" bf the succeedingcompartment and Afrornvth'e botto'mfio that compartment to' 'thefbaom ofantlier inthe series, the flues being arranged tofpa'ss y the`air`alternz`1tely thoug'hi'lthe "bottom "to the top of one compartmentand throughl 115 the top and thence "to the' bottom ofthfsucceedngjcompartmentadthus alternately to Y v the end of "thevseries, andtllerebeing Spaces betweenthe doors 'off adj acentfcompartments to accommodate an attendant" in' ima'nipulat-A igsaid carsand doors, andvalves inV the lues ltor `re` `gulatirig th rate" ofJflow'of' the heated lair."` y 4 VIntestimony whereof I hereunto affixv`my signature.' Y Y EGE'N HULTSI.

